ds seems to wake around 2:30pm and that is it until bed at around 6:45pm. He gets tired but there is no opportunity fo rhim to nap again before bed and as he rises early some days his early nap is early, later nap is early etc..... Wondering what yours are doing. He averages around 3hrs per day. Does that sound average?
Try to get his morning nap later so this has knock on effect of making afternoon nap later but as we have school run he invariably nods off in car....